menu search
brightness_auto
Feel free to answer or ask any questions.
If you are new here please see how to use or FAQ.
more_vert
Two coherent sources produce waves of different intensities which interfere. After interference, the ratio of the maximum intensity to the minimum intensity is 16. The intensity of the waves are in the ratio:

(1) 4 : 1

(2) 25 : 9

(3) 16 : 9

(4) 5 : 3

1 Answer

more_vert
 
verified
Best answer

Ans: (2) 25 : 9

Sol: ${I_{max}\over I_{min}}=16$  

$\implies{A_{max}\over A_{min}}=4$

$\implies{A_1+A_2\over A_1-A_2}={4\over1}$

Using componendo & dividendo.

${A_1\over A_2}={5\over3}\implies{I_1\over I_2}=\left({5\over3}\right)^2={25\over9}$

thumb_up_off_alt 0 like thumb_down_off_alt 0 dislike

Welcome to Jee Neet QnA, where you can ask questions and receive answers from other members of the community.


Join our Telegram group for live discussion.

Telegram Group

Subscribe our YouTube channel for video solutions with explanation.

YouTube Channel

Download Jee Neet QnA Books in PDF for offline learning.

Jee Neet QnA Books

1.2k questions

844 answers

385 comments

139 users

...